Yingda Zhang

Dynamic mechanical properties of basalt fiber-reinforced concrete after exposure to high temperature and different cooling methods

Yang Liu, Delin Li, Jinyue Dong, Yingda Zhang et autres

This study investigates the effects of high temperature and different cooling methods on the dynamic mechanical properties of basalt fiber‑reinforced concrete (BFRC). Concrete specimens with different basalt fiber contents such as 0%, 0.1%, and 0.2% by volume were first heat‑treated at elevated …

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Synergistic Effects of Additives on the Performance and Mechanism of Fly Ash–Slag-Based Geopolymer Grouting Materials

Feng Lu, Hao Yang, Haikuan Wu, Yingda Zhang et autres

ABSTRACT In tunnel engineering, when facing geological hazards such as water inrush and mud inflow, the performance of grouting materials directly affects construction safety and long-term stability. To address the limitations of traditional cement-based materials, such as slow setting and high cost …

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Multi-scale study and modeling of coal-gangue-based backfill material with MgO expansion agent under low-temperature curing conditions

Xin Zhang, Huihong Xu, Xing Wang, Yingda Zhang et autres

Low-temperature curing severely compromises coal-gangue-based backfill (CGB) performance, posing safety risks in cold-region mining. This research evaluates the effect of MgO expansive agent (MEA) in enhancing strength and mitigating damage in CGB under 5 °C curing conditions. An integrated methodology that combines …

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Sustainable architectural lightweight aggregates from sewage sludge ash: synergistic enhancement by alkali activator temperature and PVA fibers

Yingda Zhang, Haiyang Li, Xianliang Zhou, Ling Zhang et autres

The large-scale production of sewage sludge ash (SSA) from incineration poses environmental challenges, yet cold-bonded technology offers a low-energy route to produce lightweight aggregates (LWA). However, insufficient strength limits its application. This study demonstrates that increasing the alkali activator temperature from 20 …

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Optimized mix design and long-term deterioration mechanism of coal gangue concrete under sodium sulfate attack

Feng Lu, Hangqi Zhang, Yingda Zhang, Baoping Zou et autres

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Preparation of high-strength artificial aggregate from alkali-activated yellow phosphorus slag and application in high-strength lightweight concrete

Xinyu Zhou, Xi Zhu, Haidong Luo, Xiaojun Zhou et autres

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Load-bearing and failure behavior of welded horizontal joints in prefabricated shear wall structures

Bowen Xu, Yong Xu, Yingda Zhang

Prefabricated concrete structures offer advantages in construction efficiency and environmental performance, but the mechanical behavior of dry-connected horizontal joints, especially welded connections between shear walls and floor slabs, remains insufficiently understood. This study presents a systematic experimental and numerical investigation into the …

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Plant fiber microcapsules for controlling hydration heat and cracking in cement-based materials: A comprehensive review

Yingda Zhang, Baitao Li, Wanzhi Zhang, Zihao Liu

Thermal cracking induced by cement hydration heat poses a significant threat to the durability of mass concrete structures. This review comprehensively assesses the potential of Plant Fiber Microcapsules (PFMs) as a novel and sustainable solution for this longstanding issue. PFMs are engineered …

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Optimization of mechanical properties of modified rammed earth materials using cement-aggregate-fiber composites: an experimental study

Yong Xu, Yunsa Ma, Chengbo Xiao, Yingda Zhang et autres

Traditional rammed earth materials often suffer from low strength and high shrinkage, limiting their structural applicability, especially in seismic-prone regions. This study investigates the mechanical properties of modified rammed earth reinforced with sand-aggregate, cement, and fiber composites. Through orthogonal experimental design, the …

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Chloride resistance of ultra-high-performance seawater sea-sand engineered cementitious composites incorporating limestone calcined clay cement under coupled exposure conditions

Nixia Song, Jianxin Wang, Yingda Zhang, Hongtao Cui et autres

Long-term creep behavior and constitutive modeling of lightweight aggregate concrete incorporating sludge incineration residue under coupled axial load and hydraulic pressure

Xianliang Zhou, Siyue Xu, Changwu Liu, Yingda Zhang et autres

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